CVE-2026-102905: medium-severity vulnerability in spacetime Ad Inserter – Ad Manager & AdSense Ads
Ad Inserter <= 2.8.19 - Unauthenticated Arbitrary Shortcode Execution via 's' Search Parameter
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.4%
The The Ad Inserter – Ad Manager & AdSense Ads plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 2.8.19 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. Exploitation requires an administrator to have configured an ad block containing a dynamic tag such as {title}, {tag}, {category}, or {smart-tag} with display enabled on search pages, which is a normal and documented plugin configuration.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products
spacetime · Ad Inserter – Ad Manager & AdSense AdsRelated CVEs — spacetime Ad Inserter – Ad Manager & AdSense Ads
In the same product, most dangerous first.
CVE-2023-4645MEDIUMAd Inserter <= 2.7.30 - Unauthenticated Sensitive Information Exposure via ai_ajaxEPSS 0.8%CVE-2023-4668MEDIUMAd Inserter <= 2.7.30 - Unauthenticated Sensitive Information Exposure via ai-debug-processing-feEPSS 0.6%CVE-2026-11900MEDIUMAd Inserter <= 2.8.16 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Post Content Disclosure via 'data' Shortcode AttributeEPSS 0.5%CVE-2026-11983MEDIUMAd Inserter <= 2.8.16 - Missing Authorization to Block Visibility Bypass via ai_ajaxEPSS 0.4%CVE-2026-11984MEDIUMAd Inserter <= 2.8.16 - Missing Authorization to Unauthenticated Header/Footer Code Disclosure via 'ai-debug-code' ParameterEPSS 0.4%CVE-2026-9280MEDIUMAd Inserter <= 2.8.15 - Reflected Cross-Site Scripting via URL Parameters in iframe ModeEPSS 0.4%
References
https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.19/ad-inserter.php#L12974https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.19/ad-inserter.php#L13142https://plugins.trac.wordpress.org/browser/ad-inserter/tags/2.8.19/class.php#L3297https://plugins.trac.wordpress.org/changeset/3770281/ad-inserter/trunk/ad-inserter.phphttps://www.wordfence.com/threat-intel/vulnerabilities/id/a36f813c-97c5-466d-92e0-7341c12b5a46?source=cve